Thanks for the information. I’ll give it a try.
Muriatic acid is hydrochloric acid. Which is found in many “name” brand cleaners. It is merely a lot stronger concentration. So if you get it on you it will burn. Use gloves, TRY NOT BREATHE THE FUMES. So ventilate the room as much as possible. And rinse, rinse, rinse. Or flush, flush, flush. I actually dilute it with water into a spray bottle.